I'm not an expert on the layout of those pipelines, but it's unlikely that catastrophic explosions damaging all three pipes stemmed from the same root maintenan

I'm not an expert on the layout of those pipelines, but it's unlikely that catastrophic explosions damaging all three pipes stemmed from the same root maintenance cause. Not impossible without further information, but in general the whole point of having multiple pipelines would be to isolate them from this kind of shared failure.